Automatic recipro-finishing machine

ABSTRACT

Workpiece finishing apparatus including an abrasive charged trough in which workpieces are subjected to reciprocating movement along a desired path fixed by the shape of a traverse guide. The finishing trough is moveable vertically to position each workpiece in the abrasive. Mechanism is provided to automatically sequentially control the feeding, chucking, finishing and removal of workpieces.

United States Patent Kobayashi Aug. 12, 1975 [5 AUTOMATICRECIPRO-FINISHING 2,867,058 1/1969 Balsiger 51/215 CP x MACHINE [75]Inventor: l-llsamlne Kobayashl, Nagoya, Japan Primary Examiner Donald G.Kelly [73] Assignee: Shikishima Tipton Mfg. C0., Ltd., Attorney, Agent,or Firm--Wenderoth, Lind & Ponack Nagoya, Japan [22] Filed: Jan. 15,1974 [21] App]. No.: 433,491 i 57 ABSTRACT [30] Foreign ApplicationPriority Data workpiece finishing apparatus including an abrasive Jan.19, 1973 Japan 48-8376 Charged trough in which workpieces are Subjectedto reciprocating movement along a desired path fixed by 52 US. Cl. 51/7;5l/165.77; 51/215 C? the Shape of e traverse guide The finishing troughis 51 Int. Cl B24!) 51/00; 1324b 31/00 meveable vertically to positioneaeh werkpieee in the 5 Field f Search 5H7 5 R, 215 R, 2 5 p abrasive.Mechanism is provided to automatically se- 51/215 E, 1 577 quentiallycontrol the feeding, chucking, finishing and removal of workpieces. [56]References Cited UNITED STATES PATENTS 5 Claims, 25 Drawing Figures2,815,609 12/1967 Von der Linden 51/7 25a 1a, 1d

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1. An automatic recipro-finishing machine, comprising: traverse guidesoperatively mounted on said machine; a trough adapted to be filled withabrasive media; means operatively coupled to said traverse guides forfinishing a workpiece by reciprocating said workpiece in said troughwhile filled with abrasive media, said means reciprocatively moving saidworkpiece along a path defined by the shape of said traverse guides;means operatively mounted for conveying workpieces to and from saidfinishing means; means operatively mounted for chucking said workpieceover said finishing means; means operatively coupled to said finishingmeans for stopping said workpiece at a given position after thefinishing operation has been completed; and means operatively coupled tosaid finishing means, said conveying means, said chucking means, andsaid stopping means for controlling the operations thereof in apredetermined sequence.
 2. An automatic recipro-finishing machineaccording to claim 1 wherein said reciprocating movement follows astraight path.
 3. An automatic recipro-finishing machine according toclaim 1 wherein said reciprocating movement follows a cuRved path. 4.The automatic recipro-finishing machine of claim 1 further comprisingmeans operatively positioned for moving said workpiece at a side of andparallel to said trough, said means being operatively coupled to saidcontrolling means.
 5. An automatic recipro-finishing machine accordingto claim 4 wherein said means for moving and means for conveyingworkpieces are comprised of two sets of rails on the horizontal planeand perpendicular to each other, wheel means mounted on said rails,roller means rotatable along the side of said rails, and cutout portionsprovided at a turning point of said rails for facilitating movement ofsaid roller means.